Description
Product Overview
Designed specifically for professional water analysis, the 400NTU Formazin calibration solution delivers a stable and reproducible turbidity reference that aligns with international standards such as ISO 7027 and EPA Method 180.1. The formulation is based on high purity Formazin, a synthetic polymer that creates a consistent scattering effect, allowing turbidity meters to be calibrated with confidence. Packaged in a sealed 100 ml amber glass bottle, the solution resists light degradation and maintains its optical properties over extended storage periods. The product dimensions of 0.59 x 0.59 x 0.59 inches and a weight of 1.1 lb make it convenient for laboratory benches, field kits, and portable calibration kits, ensuring that users can quickly access a reliable standard wherever they work.
Compatibility is a core strength of this calibration standard. It is fully compatible with the SGZ 200B, SGZ 200BS, SGZ 20B, SGZ 50B, and SGZ 400B turbidity meters, as well as other instruments that follow the same measurement principles. The 400NTU concentration provides a high end reference point, while the solution can be diluted accurately to generate lower NTU levels for routine checks. Detailed instructions accompany the product, guiding users through proper handling, storage, and dilution procedures to avoid contamination. The manufacturer HFBTE adheres to strict quality control protocols, and each batch is tested for optical density, ensuring that the delivered solution meets the declared 400NTU value within tight tolerances.
Usage
In laboratory environments, the solution serves as the primary calibration standard for verifying the performance of turbidity meters before sample analysis. Technicians pour a small aliquot into a clean cuvette, insert the probe, and allow the instrument to read the turbidity value. The rapid stabilization of the reading, typically within a few seconds, enables high throughput testing and minimizes downtime. Because the solution mimics the scattering characteristics of natural water samples, it provides a realistic benchmark that translates directly to field measurements of rivers, lakes, and wastewater streams.
For field applications, the compact 100 ml bottle fits easily into portable kits carried by environmental engineers, water treatment operators, and compliance auditors. When performing on-site calibrations, users can quickly open the bottle, dispense the required amount, and perform a check without needing a full laboratory setup. The robust packaging protects the solution from temperature fluctuations and accidental spills, making it suitable for use in harsh outdoor conditions. This flexibility ensures that accurate turbidity data can be obtained even in remote locations where laboratory access is limited.
Beyond calibration, the solution can be employed as a reference standard for method validation, inter-laboratory comparisons, and proficiency testing programs. By providing a common benchmark, laboratories can assess the consistency of their measurement procedures and identify any systematic biases. The ability to dilute the 400NTU stock to lower concentrations also supports the creation of a full calibration curve, enhancing the linearity verification of the instrument across its operating range.
Regulatory agencies often require documented evidence of instrument calibration using certified standards. The 400NTU Formazin solution, with its traceable certification and documented stability, satisfies these compliance requirements. Users can generate calibration records that include the date, batch number, and measured values, facilitating audit trails and ensuring that water quality reports are based on validated data. This contributes to the overall reliability of environmental monitoring programs and helps organizations meet statutory obligations.
Why Choose Us
HFBTE’s commitment to product excellence is reflected in the rigorous testing each batch undergoes before release. The 400NTU Formazin solution is produced in a controlled environment, where temperature, humidity, and contamination are continuously monitored. Optical density measurements are performed with calibrated spectrophotometers, and the results are cross-checked against reference materials to guarantee accuracy. This meticulous approach reduces variability and provides users with confidence that their turbidity meters are calibrated against a true standard.
The fast delivery service ensures that customers receive the calibration solution promptly, minimizing interruptions to their testing schedules. Orders are processed within 24 hours, and the product is shipped with protective packaging to prevent breakage. For bulk purchasers, HFBTE offers volume discounts and priority support, allowing large facilities to maintain an uninterrupted supply of calibration standards.
Customer support extends beyond the point of sale. HFBTE provides technical assistance for installation, dilution calculations, and troubleshooting. A dedicated helpline and online resources, including video tutorials and detailed PDFs, are available to guide users through every step of the calibration process. This comprehensive support network helps both novice and experienced technicians achieve accurate results.
Sustainability is also a priority. The amber glass bottle is recyclable, and the formulation uses environmentally responsible raw materials. HFBTE continuously evaluates its manufacturing processes to reduce waste and energy consumption, aligning with global sustainability goals while delivering a high-quality product that meets the demanding needs of the water analysis industry.
Key Features
- Stable 400NTU Formazin concentration ensures precise calibration across a wide range of turbidity meters, delivering consistent results for both laboratory and field measurements.
- Compact 100 ml amber glass bottle protects the solution from light and temperature changes, providing long-term storage stability and easy handling during on-site calibrations.
- Fully compatible with SGZ 200B, 200BS, 20B, 50B, and 400B models, as well as other standard turbidity instruments, simplifying inventory and reducing the need for multiple standards.
- High purity Formazin formulation minimizes background interference, allowing accurate dilution to lower NTU levels for creating full calibration curves and method validation.
- Dedicated technical support and detailed documentation help users perform calibrations correctly, and HFBTE offers after-sales service for any questions or replacement needs.
FAQ
How do I store the 400NTU Formazin solution to maintain its accuracy?
Store the bottle in a cool, dark place away from direct sunlight and extreme temperatures. Keep the cap tightly sealed after each use, and avoid freezing. Under these conditions the solution remains stable for at least 12 months.
Can I dilute the 400NTU stock to create lower calibration standards?
Yes, the solution is designed for accurate dilution. Use de‑ionized water and follow the dilution ratios provided in the instruction sheet. For example, mixing 10 ml of the stock with 90 ml of water yields a 40 NTU standard.
Is the calibration solution compatible with turbidity meters from other manufacturers?
The Formazin standard follows the ISO 7027 scattering principle, which is common to most turbidity meters. While it is fully compatible with SGZ series devices, it can also be used with other brands that employ the same measurement method, though users should verify compatibility with the instrument’s manual.
What should I do if I notice a change in the measured NTU value after calibration?
If the instrument reads a value significantly different from the expected 400 NTU, re‑check the bottle for contamination, ensure the cuvette is clean, and verify that the solution has not been exposed to extreme conditions. If the issue persists, contact HFBTE technical support for assistance and possible replacement.
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